Phytoremediation of fuel oil and lead co-contaminated soil by Chromolaena odorata in association with Micrococcus luteus
| Autor: | Prayad Pokethitiyook, Maleeya Kruatrachue, Kongkeat Jampasri, Puey Ounjai, Acharaporn Kumsopa |
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| Rok vydání: | 2016 |
| Předmět: |
0211 other engineering and technologies
Chromolaena odorata 02 engineering and technology Plant Science 010501 environmental sciences 01 natural sciences Chromolaena Soil Pollutants Environmental Chemistry Soil Microbiology 0105 earth and related environmental sciences 021110 strategic defence & security studies Rhizosphere biology Chemistry biology.organism_classification Pollution Soil contamination Micrococcus luteus Phytoremediation Biodegradation Environmental Lead Agronomy Soil water Soil microbiology Fuel Oils |
| Zdroj: | International Journal of Phytoremediation. 18:994-1001 |
| ISSN: | 1549-7879 1522-6514 |
| DOI: | 10.1080/15226514.2016.1183568 |
| Popis: | Phytoremediation is widely promoted as a cost-effective technology for treating heavy metal and total petroleum hydrocarbon (TPH) co-contaminated soil. This study investigated the concurrent removal of TPHs and Pb in co-contaminated soil (27,000 mg kg(-1) TPHs, 780 mg kg(-1) Pb) by growing Siam weed (Chromolaena odorata) in a pot experiment for 90 days. There were four treatments: co-contaminated soil; co-contaminated soil with C. odorata only; co-contaminated soil with C. odorata and Micrococcus luteus inoculum; and co-contaminated soil with M. luteus only. C. odorata survived and grew well in the co-contaminated soil. C. odorata with M. luteus showed the highest Pb accumulation (513.7 mg kg(-1)) and uptake (7.7 mg plant(-1)), and the highest reduction percentage of TPHs (52.2%). The higher TPH degradation in vegetated soils indicated the interaction between the rhizosphere microorganisms and plants. The results suggested that C. odorata together with M. luteus and other rhizosphere microorganisms is a promising candidate for the removal of Pb and TPHs in co-contaminated soils. |
| Databáze: | OpenAIRE |
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